Locomotive headlight and mounting therefor



Nov. 29, 1927.

c.' P. MCGINNls ET AL LOCOMOTIVE HEADLIGHT AND MOUNTING THEREFOR Filed Jn, 7, 192s 4 sheets-sheet 1 a A TORNEYS. l

4 Sheets-Sheet 2 C P MCGINNIS ET AL LocoMoTIvE HEADLIGHT AND MOUNTING THEREFOR Filed Jan. v, 1926 Nov. 29, 1927.

INVENTQRS AT-TORNY.

C; P. MCGINNIS ET AL LOCOMOTIVE HEADLIGHT AND MOUNTING THEREFOR Nov.. 29, 1927.

Filed Jan. 7, 1926 4 Sheets-Sheet 5 mwN Nov. 429, 1927. 1,650,719

C. P. MCGINNIS ET AL LOCOMOTIVE HEADLIGHT AND MOUNTING THEREFOR Filed Jan, '7, 192s 4 sheets-sheet 4 INVENTOR atented Nov. Z9, 1927.

CRAWFORD?. MCGINNIS AND CHARLES W. DAKE, 0F CHICAGO, ILLINDIS, .ASSIGNORS TQ THE PYLE-NATIONAL COMPANY, 0F CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

LOCOMOTIVE IIEADLIGHT AND MOUNTING THEREFOR.

Application led January 7, m26.4 Serial No. 79,733.

The invention relates to improvements in locomotive headlights and mounting therefor and has for one object to provide a new and improved type of headlight mounting wherein the casting line of the beam projected by the headlight may be easily and conveniently adjusted. Another object of the invention is to provide a device wherein the combined headlight housing may be brought together in a satisfactory manner :tor adjustment and operation. Another object will be to provide a housing Vparticularly well adapted to contain both a headlight bulb and a pilot light bulb in onel assembly. Other objects will appear from time to time in the course of the specification and claims.

This invention is illustrated more or less diagrammatically in the accompanying drawings, wherein- Figure l is a longitudinal section on a vertical plane through the headlight base and housing;

Figure removed; v

Figure 3 is a `side elevation;

Figure 4 is a section on an enlarged scale through the light bracket;

Figure 5 is a section along the line 5-5 of Figure 4. f

Like parts are indicated by like characters throughout the specification and drawings.

A is a headlight base. It comprises a box havinga plurality of lugs A1 A2 adapted to be fastened to any suitable supporting platform upon which the headlight can be mounted. rIhis box may contain a light source A3 and has at either side the outwardly and rearwardly inclined translucent door panels A4 A4L held in place to close the boxby means of links A'5 and thumb screws A, These panelsl are extended by pivot hinges A" so that access may be had to the interior 'of the box to replace the light source and to place 2 is front elevation with parts number plates on the inside of the trans-k lucent panel so that the engine number can `be illuminated and easily read. The forward top portion of this box is bounded by a generally parabolic Wall A2 and provide; clearance by the headlight housing itsel t The headlight housing comprises a metal bell B generally parabolic and terminating at the front in a cylindrical sleeve B1 slight- 1y oseit or enlarged from the bell as ndicated. 'Projecting outwardly from this cylinder B1 are lugs B2 B2 in Which are threaded cap screws B3. rlhese cap screws engage longitudinally disposed horizontal slots B4 in lugs B5 projecting upwardly from the base Aso that the front end of the housing is supported in these lugs. At the rear extremity of the bell B is an outwardly and rearwardly inclined lug B apertured at B7 and adapted to engage the downwardly and rearwardly inclined surface of a lug B8 projecting u Wardly from the box A. A cap screw B9 is t ireaded in the lug B8 passed through the aperture B7 which is considerably larger than the cap screw and carries a washer B10 interposed between the head of the cap screw and the lug B6.

kC is the reflector contained within the bell `B and out of contact exceptv around its outer periphery where a cushion C1 is provided. C2 is a holding ring having cushioning elements C3 engaging the edge ofl the reflector. This holding ring is held in place by a sleeve C4r carried by brackets C40 inside the member B1 to hold the reflector in place. Projecting inwardly from the ring C@t are a plurality ofsupporting strips C5 and a hollow supporting arm C6. The karm and strips support a fixed sleeve C7 in which is slidablv mounted a threaded adjusting sleeve C?. This sleeve is slotted at C to engage a pin C1 in the sleeve C" to hold the ad- `justing sleeve Ca and abut against the ends of the sleeve C7 so that by adjusting of these nuts the sleeve may be moved longitudinally, the .pinv holding it against rotation while permitting its longitudinal movement. The fixed sleeve C7 and the adjusting sleeve' C2` are apertured at C18 in line with the hollow leg or arm C".

Mounted in either end of the adjusting sleeve Cs are electric light sockets D lD1 in which are mounted electric light bulbs D2 D5. Wires D4DA1 lead up through the hollow arm C6 and aperture C13 into the interior of the sleeves C7 C, Some of them going to the socket D and others tothe socket D1. These wires have their other ends pass down through the aperture D5 in the ring C4 and out through the thimbles D in the lu D7, which project upwardly from the ower portion of the top of the housing A, thus the wires pass down to the binding post D8. It will be lnoted that the member B1 is apertured at D0 to permit the thimbles D6 and lugs I)7 to interlock with it thereby avoiding interference when the headlight is being adjusted and at the same time giving a certain alnount of closure to the headlight housing, there being only sufficient space left between the aperture in the ring and the lugs to permit ventilation of the housing.

E is a visor ring mounted on the ring Bl projecting' forwardly therefrom. Its uplper portion is widerthan its lower and it is closed by a concave glass or translucent window E1 having a reinforcing ring E2 where the glass engages the visor and held in position by means of the clamp springs E3 and screws E* workin in opposition between a flange E5 and lugglil6 whereby the housing is closed at the front against the elements.

The visor E is pivoted on the hinges E7 projecting from the member Bl and is adapted to be held in the closed position by means of the hook E8 engaging a pin E. E1o is a. compressible packlng interposed between the visor frame and the balance of the housing.

It will be evident that while we have shown in our drawings an operative device, still many changes might be made in the size, shape and dis osition of parts without departing materially from the spirit of our invention and we wish, therefore, that our showing be taken as in a sense diagrammatic.

The use and operation of this invention are as follows:

The box frame or headlight base is mounted on any suitable platform, bracket or other support on the locomotive and bolted firmly in position thereon being arranged with its longitudinal axis generally in line with the locomotive axis.

The reflector housing being mounted on the box frame by means of three lugs, one at each side and one at the rear, may be when the holding screws are loosened adjusted with respect to the box frame so that the axis of beam projected by the reflector will be in a vertical plane containing the axis of the locomotive and because the rear lug is downwardly and rearwardly inclined and engages an inclined abutment the angle made by the axis of the beam and the horizontal ma. be adjusted to control the point at which t e beam intersects the ground, this being made possible because the aperture in the rear lug through which the rear setscrew penetrates is a large, round aperture permitting adjustment within limitation in any direction. The apertures in the lugs projecting up from either side of the box frame and engaging the cap screws and the reflector housing being elongated in a horizontal plane permit angular adjustment of the reflector housing in a horizontal plane only, the 4adjustn'ient of the vertical plane being as above noted made at the rear end.

The wires carrying the current to the light source or sources in the reflector housing pass up through the box frame and through the sleeve there shown which penetrates within the enlarged aperture in the lower central portion of the reflector housing. The space between the sleeve aml the wall of the aperture is sufficient to permit adjustment without binding. Therefore, space would have to be left open to permit condensation, sweating and the like to cscape from the reflector housing.

Since there is a three point support for the reflector housing, the range of movement in the two forward side supports permits angular movement of the axis of the reflector housing in a horizontal plane whereas the inclined surface upon which the lug at the hack of the reflector housing permits also angular movement in a vertical plane, thus a universal movement can be made by loosening the three holding cap screws and slightly moving the reflector housing into position and then tightening the screws.

We claim:

1. In a headlight for locomotives and the like, a base frame, three spaced lugs thereon, two of them horizontally slotted, the other having an inclined plane surface, a headlight housing mounted on the frame, lugs thereon in opposition to the lugs on the frame, screws in two of said lugs passing through the slots on the lugs on the frames, the other lug inclined to engage the inclined lug on the frame and having a large hole therein, the screw on the frame passing therethrough.

2. In a headlight for locomotives and the like, a base frame, three spaced lugs thereon, two of them horizontallyl slotted, the other having an inclined plane surface, a headlight housing mounted on the frame, lugs thereon in opposition to the lugs on the frame, screws in two of said lugs passing through the slots on the lugs on the frame, the other lug inclined to engage the inclined lug on the frame and having a large hole therein. the Screw on the frame, passing therethrough. the lugs on the headlight housing being all of them located jus-I below the horizontal axial plane of the reflector.

3. A headlight for locomotives and the like comprising a box supporting frame. the front and top walls being cut away to form a concave cradle, a headlight housing projecting upwardly from the box frame and penetrating within said cradle but out of contact with the walls thereof and means for holding the housing and frame in operating relation, registering apertures in the box frame and the housing, electric and State of kNew York, this 21st day of conductors extending through the box Deo., 1925.

frames and said apertures into the housing, CRAWFORD P. MCGINNIS. i r a sleeve surrounding'the apertu1e-on the Signed at Chicago, County of Cook and box @me and Proectmg upwardly mw the stato of Illinois this 23rd doy of Dooomheadhght housmg through the aperture ber 1925 therein.

signed oo Now York, county of Now York CHARLES W.. BAKE. 

